The Islamic State militant group (ISIS) has published a new infographic detailing how the jihadists orchestrated the deadliest mass shooting in modern U.S. history on Sunday night, despite serious doubts as to the group's involvement by authorities.

In the latest edition of ISIS's weekly Al-Naba online magazine, which was shared by its supporters Thursday on encrypted messaging app Telegram, the militant network provided more information intended to bolster its prior claims that assailant Stephen Paddock converted to Islam prior to killing 58 people and injuring hundreds more, when he opened fire on concertgoers from his 32nd floor room in the Mandalay Bay hotel in Las Vegas with nearly two dozen weapons.